Home / 16,390.54-22,618.47-9,316.81

Finding the Fourth Proportional to 16,390.54, 22,618.47 and 9,316.81

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Solution

The fourth proportional to 16,390.54, 22,618.47 and 9,316.81 is: 12,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.54 : 22,618.47 = 9,316.81 : x
  2. Step 2: Convert to fraction form
    16,390.54/22,618.47 = 9,316.81/x
  3. Step 3: Cross multiply
    16,390.54x = 22,618.47 × 9,316.81
  4. Step 4: Simplify right side
    16,390.54x = 210,731,987.48
  5. Step 5: Solve for x
    x = 210,731,987.48/16,390.54
  6. Step 6: Final answer
    x = 12,856.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.